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Finding the Fourth Proportional to 483,326.40, 724,989.60 and 167,815.20

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Solution

The fourth proportional to 483,326.40, 724,989.60 and 167,815.20 is: 251,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,326.40 : 724,989.60 = 167,815.20 : x
  2. Step 2: Convert to fraction form
    483,326.40/724,989.60 = 167,815.20/x
  3. Step 3: Cross multiply
    483,326.40x = 724,989.60 × 167,815.20
  4. Step 4: Simplify right side
    483,326.40x = 121,664,274,721.92
  5. Step 5: Solve for x
    x = 121,664,274,721.92/483,326.40
  6. Step 6: Final answer
    x = 251,722.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.